Download or read book Nitroalkenes written by V. V. Perekalin and published by . This book was released on 1994-08-16 with total page 318 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitroalkenes reveals the great significance to theoretical and synthetic chemistry of this class of compounds. Over recent years the applications of nitroalkenes have expanded rapidly from established areas, such as rocket propulsion and explosives, into biotechnology, perhaps the science of the 1990s. The high reactivity of nitroalkenes makes them particularly suitable for the synthesis of biologically active compounds such as alkaloids, antibiotics, prostaglandins and biocides, etc. Nitroalkenes is a unique and up-to-date analysis written for all chemists working in organic synthesis and chemical technology. The fascinating versatility of these compounds makes this book particularly relevant to researchers in the pharmaceutical, aerospace and explosives industries.

Download or read book Catalytic Asymmetric Reactions of Conjugated Nitroalkenes written by Irishi N.N. Namboothiri and published by CRC Press. This book was released on 2020-08-13 with total page 431 pages. Available in PDF, EPUB and Kindle. Book excerpt: Nitroalkenes have often been referred to as "synthetic chameleons" owing to their reactivity, synthetic utility and biological significance. In the last two decades, the reactivity of nitroalkenes as substrates in diverse catalytic asymmetric transformations has been of tremendous interest on account of the powerful abilities of the nitro group to coordinate and withdraw electrons, as well as its amenability to undergo a wide variety of synthetic transformations. Although numerous original articles and reviews have appeared in the literature, a monograph providing a comprehensive coverage of this topic was conspicuous by its absence. This book features: A systematic, up-to-date, in-depth and well-organized compilation, spread over 12 chapters, of various catalytic asymmetric reactions of nitroalkenes with diverse substrates reported to date A wide coverage of reactions such as Michael additions, Friedel–Crafts reactions, cycloadditions, asymmetric reductions, multicomponent and cascade reactions, as well as other miscellaneous reactions Various chiral organo, metal and even biocatalysts involved in the stereoselective synthesis of multifunctional adducts via catalytic asymmetric reactions of nitroalkenes Schemes and figures detailing all the reagents, reaction conditions and product profiles Mechanistic details, including transition state models, which will be useful for effective catalytic design This book will be an invaluable resource for those who are working in the area of asymmetric catalysis and synthetic methodologies.

Download or read book The Reaction of Certain Nitroalkanes Nitroalkenes and B nitro Acetates with Base written by Martha Meredith Vestling and published by . This book was released on 1967 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Nitro Group in Organic Synthesis written by Noboru Ono and published by John Wiley & Sons. This book was released on 2003-05-08 with total page 392 pages. Available in PDF, EPUB and Kindle. Book excerpt: The most useful reactions of organonitro compounds in organic synthesis Compounds containing nitro groups are useful intermediates for the synthesis of natural products and other complex organic molecules. The Nitro Group in Organic Synthesis focuses on reactions that proceed under mild conditions, important functional groups that can be synthesized by conversion of nitro groups, and the stereoselectivity of reactions of nitro compounds. These issues are of great importance to practicing researchers in today's pharmaceutical, agrochemical, and fine chemical industries. The Nitro Group in Organic Synthesis also emphasizes environmentally-friendly methods for nitration, the importance of aliphatic nitro compounds, and modern preparation of nitro compounds. Other topics discussed include: * Henry reaction * Asymmetric Michael addition * Alkylation, acylation, halogenation, and related reactions of RNO2 * Substitution and elimination of NO2 and RNO2 The Nitro Group in Organic Synthesis is a useful resource for researchers and students in organic and medicinal chemistry.

Download or read book Nitroalkanes and Nitroalkenes written by U. S. Environmental Protection Agency and published by BiblioGov. This book was released on 2013-07 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The U.S. Environmental Protection Agency (EPA) was introduced on December 2, 1970 by President Richard Nixon. The agency is charged with protecting human health and the environment, by writing and enforcing regulations based on laws passed by Congress. The EPA's struggle to protect health and the environment is seen through each of its official publications. These publications outline new policies, detail problems with enforcing laws, document the need for new legislation, and describe new tactics to use to solve these issues. This collection of publications ranges from historic documents to reports released in the new millennium, and features works like: Bicycle for a Better Environment, Health Effects of Increasing Sulfur Oxides Emissions Draft, and Women and Environmental Health.

Download or read book Nitroalkanes and Nitroalkenes in Synthesis written by and published by . This book was released on 1990 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitroalkanes and Nitroalkenes written by David Y. Lai and published by . This book was released on 1982 with total page 19 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Synthesis and Mass Spectral Study of Conjugated Nitroalkenes written by Michael Erik Postula and published by . This book was released on 1990 with total page 130 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitroalkenes in the Synthesis of Bicyclic Beta lactams written by Sven Julian Taylor and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitroalkenes in Bicyclic Beta lactam Synthesis written by Gregory Glenn Graboski and published by . This book was released on 1987 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Cycloaddition Reactions of Nitroalkenes written by S. Ghose and published by . This book was released on 1988 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitroalkenes in the Asymmetric Synthesis of Amino Acids written by Paul William Nicholas Christian and published by . This book was released on 1997 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Preparation of Alpha Beta Unsaturated Nitroalkenes and Their Reactions written by Clayton Omar Obenland and published by . This book was released on 1950 with total page 86 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Tandem Cycloaddition Chemistry of Nitroalkenes written by Jeromy John Cottell and published by . This book was released on 2004 with total page 612 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The Photoreactions of Conjugated Nitroalkenes in Dilute Solution written by J. S. Cridland and published by . This book was released on 1970 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book The solution photochemistry of nitroalkenes and nitroketones written by Peter J. Moles and published by . This book was released on 1978 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Nitroalkene 4 2 Cycloadditions of Achiral and Chiral Vinyl Ethers The Stereochemical Consequence of the Lewis Acid Promoter and Studies Toward the Total Synthesis of pretazettine written by Mark Edward Schnute and published by . This book was released on 1995 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Chiral enol ether dienophiles derived from (1R,2S)-($-$)-2-phenylcyclohexanol and (R)-($-$)-2,2-diphenylcyclopentanol (($-$)-6 have been found to provide high levels of asymmetric induction in tandem inter (4+2) /intra (3+2) nitroalkene cycloadditions. Either enantiomeric series of tandem cycloaddition/hydrogenolysis product is available from the chiral auxiliary of a single absolute configuration by judicious selection of the Lewis acid promoter, Ti(Oi-Pr)$sb{2}$Cl$sb{2}$ (98% ee, ($-$)) or methylaluminum bis-(2,6-diphenylphenoxide) (MAPh) (93% ee, (+)). Propenyl ethers derived from ($-$)-6 undergo endo-selective (4+2) cycloadditions (2.3/1-8.2/1) in the presence Ti(Oi-Pr)$sb2$Cl$sb2$, however, exoselective (4+2) cycloadditions (10.2/l-54.8/l) are observed in the presence of MAPh. 2-(Acyloxy)vinyl ethers undergo regioselective (4+2) cycloadditions with nitroalkenes (promoted by SnCl$sb4$) to afford substituted 5-acetoxy nitronates in good yields (68%-91%). The endo/exo selectivity in the cycloadditions has been found to be dependent on the nitroalkene substitution; 2-aryl-1-nitroalkenes provided exclusively exo cycloadducts while 2-cyclohexyl-1-nitroethene afforded predominately endo cycloadducts (12/1). The resulting nitronates can be elaborated to N-tosyl-4-substituted-3-hydroxypyrrolidines by hydrogenolysis (160 psi of H$sb2$/PtO$sb2$) or to bicyclic $alpha$-hydroxy lactams by (3+2) cycloaddition followed by hydrogenation (14.7 psi of H$sb2$/Raney nickel). A chiral 2-acetoxyvinyl ether derived from ($-$)-6 has been employed in the cycloaddition-hydrogenation sequence to prepare an optically active N-tosyl-3-hydroxypyrrolidine in high enantiomeric excess (96% ee). The strategy of nitroalkene (4+2) cycloadditions employing 2-acetoxyvinyl ethers as dienophiles has been explored toward the total synthesis of the Amaryllidaceae alkaloid (+)-pretazettine.